“Forever Plaid, Plaid Tidings”: New Village Arts presents the holiday version of Stuart Ross’ musical about four long-dead harmony singers from the ’60s who get a celestial reprieve to come back and perform one last time; 8 p.m. Thursdays-Saturdays; 3 p.m. Saturdays; 2 p.m. Sundays; through Dec. 30; New Village Arts, 2787 State St., Carlsbad; $22-$33;